> As a temporary fix we reduced the MTU for all IPv6 paths to 1,280 (solution mentioned as #2). Many other providers have the same problem and use this trick on

> As a temporary fix we reduced the MTU for all IPv6 paths to 1,280 (solution mentioned as #2). Many other providers have the same problem and use this trick on IPv6, and never send IPv6 packets greater than 1,280 bytes. This feels like a bad idea. If your set your MTU to the minimum then anything still encapsulated gets pushed below the minimum.